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Lithium Mod Wiki

Lithium Mod Wiki & Guide

wiki.9minecraft.net/lithium-mod/

Lithium Mod is an optimization mod that reduces load and increases FPS in Minecraft. It is a universal mod that improves both game and server performance and can function for players as well as on servers. It allows for up to a 45% reduction in CPU load.

Guides

Step-by-step, in-game.

How to Configure Lithium Mod to Fix Mod Compatibility IssuesLithium changes how Minecraft handles physics, mob AI, chunk loading, and redstone. Most of the time this is…How to Install Lithium Mod on Minecraft Java EditionLithium is a Java Edition mod, so it will not work on Bedrock, Pocket Edition, or consoles. If you are on Java,…How to Use Lithium Mod on a Multiplayer ServerLithium works on both the client and the server, and the two sides are independent. A server running Lithium benefits…How to Verify Lithium Mod Is Actually Improving Your PerformanceInstalling Lithium and assuming it works is not the same as confirming it. Because the mod is invisible in normal…

Frequently asked questions

How do I know if Lithium is actually working?
Check your game's log or mod list to confirm it loaded, then compare your FPS and CPU usage before and after enabling it. Lithium doesn't add a visible HUD or menu, so the difference shows up as smoother performance rather than a new screen.
Does Lithium change anything about my world or gameplay?
No, Lithium only changes how the game calculates things under the hood, so blocks, mobs, and mechanics behave the same. It's designed to be a drop-in optimization that doesn't alter vanilla behavior.
Where is the Lithium config file and what can I change in it?
The config file is generated in your Minecraft config folder after the mod runs once. It lets you toggle individual optimizations on or off, which is useful when a specific tweak breaks compatibility with another mod.
Which optimizations should I turn off if another mod breaks?
Disable categories one at a time, starting with the area the broken mod touches, such as physics, mob AI, or redstone. Restarting between changes helps you pinpoint exactly which optimization is causing the conflict.

See all 20 Lithium questions ›

Other mod wikis on the site.

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